The utility model belongs to a separation type bearing, the inner and outer rings of the bearing are provided with tapered raceways, and the rollers are in the shape of a round table. The roller is in line contact with the raceway, which can bear heavy combined radial and axial loads, and can also bear pure axial loads. The larger the contact angle is, the higher the axial bearing capacity is.

The tapered roller shall be designed so that the contact line between the roller and the inner and outer raceway is extended and intersected at the same point on the bearing axis, so as to realize pure rolling.

The newly designed tapered roller bearing adopts the reinforced structure, the diameter of the roller increases, the length of the roller lengthens, and the number of the roller increases. The convex roller is adopted, which significantly improves the bearing capacity and fatigue life of the bearing. The spherical surface and the conical surface are used to contact the large end face and the large retaining edge of the roller to improve the lubrication.

This kind of bearing can be divided into single row, double row and four row tapered roller bearings according to the number of rows of rollers. This kind of bearing also uses British series products.